plutonic
adjective
plu·ton·ic
plü-ˈtä-nik 
1
: formed by solidification of magma deep within the earth and crystalline throughout
plutonic rock
2
often capitalized
: plutonian
Examples of plutonic in a Sentence
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Gravestones can be made from plutonic rocks (after Pluto, the earlier name for Hades), like gabbro and granite; metamorphic rocks, like slate and marble; and sedimentary rocks, like sandstone and limestone.
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David Bressan, Forbes, 31 Oct. 2024
Evolution of an upper crustal plutonic-volcanic plumbing system: Insights from high-precision U-Pb zircon geochronology of the intracaldera tuff and intrusions in Silver Creek caldera, Arizona, USA by T. Zhang and others.
—Erik Klemetti, Discover Magazine, 11 Dec. 2010
Simon O’Neill unleashed a gleaming, live-steel tenor, and Franz-Josef Selig’s plutonic bass made for an imposing Hunding.
—Globe Staff, BostonGlobe.com, 29 July 2019
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David Bressan, Forbes, 31 Oct. 2024
Evolution of an upper crustal plutonic-volcanic plumbing system: Insights from high-precision U-Pb zircon geochronology of the intracaldera tuff and intrusions in Silver Creek caldera, Arizona, USA by T. Zhang and others.
—Erik Klemetti, Discover Magazine, 11 Dec. 2010
Simon O’Neill unleashed a gleaming, live-steel tenor, and Franz-Josef Selig’s plutonic bass made for an imposing Hunding.
—Globe Staff, BostonGlobe.com, 29 July 2019
Cite this Entry
“Plutonic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plutonic. Accessed 25 Jul. 2025.
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